光照和日粮能量干预对绒山羊消化率、毛囊活性和产绒性能的影响  

Effects of Photoperiod and Diet Energy Intervention on Nutrient Digestibility,Hair Follicles Activity,Cashmere Production for Cashmere Goats

作　　者：张崇志[1] 孙海洲[1] 李胜利[1] 桑丹[1] 张春华[1] 金鹿[1] 乌日格希拉图 乌云娜 查干 希吉尔 

机构地区：[1]内蒙古农牧业科学院动物营养与饲料研究所,内蒙古呼和浩特010031 [2]鄂托克前旗兽医局,内蒙古鄂尔多斯016200

出　　处：《家畜生态学报》2017年第3期19-24,共6页Journal of Domestic Animal Ecology

基　　金：国家现代农业产业技术体系建设专项(CARS-40-12);国家公益性行业(农业)科研专项(201303059);内蒙古农牧业科技创新基金(2013CXJJM05);内蒙古农牧业科学院青年创新基金(2015QNJJM01)

摘　　要：试验研究光照和日粮能量干预对内蒙古白绒山羊营养物质表观消化率、毛囊活性和产绒性能的影响。选择体况良好,体重为(20.36±2.63)kg的2周岁内蒙古白绒山羊24只,随机分为4组,每组6只,分别为高能量自然光照组(Ⅰ)、高能量短光照组(Ⅱ)、低能量自然光照组(Ⅲ)和低能量短光照组(Ⅳ),进行5个月的光照控制饲喂试验。结果表明,7月份Ⅳ组次级毛囊活性显著高于Ⅰ组(P<0.05),Ⅱ组和Ⅳ组试验羊的CP消化率显著高于Ⅰ组和Ⅲ组(P<0.05);9月份Ⅳ组试验羊的DM表观消化率显著高于Ⅲ组(P<0.05),Ⅲ组的NDF和CP表观消化率显著低于Ⅳ组和Ⅰ组(P<0.05),Ⅱ组次级毛囊活性显著高于其他三个组(P<0.05);10月份,Ⅰ组试验羊平均体重显著高于Ⅳ组(P<0.05),Ⅱ组和Ⅳ组试验羊的CP消化率显著高于Ⅰ组和Ⅲ组(P<0.05),Ⅳ组次级毛囊活性显著高于Ⅱ组(P<0.05),Ⅱ组和Ⅳ组试验羊的平均绒长度均显著高于Ⅰ组和Ⅲ组(P<0.05);Ⅳ组试验羊的平均绒细度显著低于Ⅰ组(P<0.05);Ⅲ组试验羊的平均绒重量显著低于Ⅱ组(P<0.05)。在本试验条件下,相同光照时间高能量组试验羊平均体重提高6.98%,绒细度增加;相同能量水平短光照组试验羊的DM、NDF和CP表观消化率显著提高,皮肤次级毛囊活性,绒长度和绒重量显著提高。This study investigated the effects of photoperiod and diet energy intervention on nutrient digestibility,hair follicles activity,cashmere production for cashmere goats.Twenty four cashmere goats were allocated randomly into 4groups:high energy and natural light group(groupⅠ;n=6),high energy and short light group(groupⅡ;n=6),low energy and natural light group(groupⅢ;n=6),low energy and short light group(groupⅣ;n=6).The results showed that the secondary hair follicle activity were significantly increased in groupⅣcompared to groupⅠ(P<0.05),and for groupⅡandⅣa significant increase of the CP digestibility were found in relation to groupⅠand Ⅲin July.The DM digestibility were significantly increased in group Ⅳ compared to group Ⅲ(P<0.05),and the NDF and CP digestibility were significantly increased in group Ⅲ compared to group Ⅳ andⅠ(P<0.05),and the secondary hair follicle activity were significantly increased in group Ⅱ compared to other three groups(P<0.05)in September.The body weight were significantly increased in groupⅠcompared to group Ⅳ(P<0.05),for groupⅡandⅣ,a significant increase of the CP digestibility were found in relation to groupⅠand Ⅲ,the secondary hair follicle activity were significantly increased in groupⅣcompared to groupⅡ(P<0.05),the cashmere length were significantly increased in group ⅡandⅣ compared to groupⅠandⅢ(P<0.05),the cashmere diameter was significantly decreased in group Ⅳ compared to groupⅠ(P<0.05),and the cashmere weight were significantly reduced in group Ⅲ compared to groupⅡ(P<0.05).In the experimental conditions,the goats' weight and cashmere diameter were significantly increased in the same light time and high energy group.A significant increase of the DM,NDF,CP digestibility,the secondary hair follicle activity,the cashmere length and the cashmere weight were found in the same energy level of short light time.

关 键 词：光照 能量水平 消化率 毛囊 绒生长 

分 类 号：S811.5[农业科学—畜牧学]